Enter any address in Washington County, Utah to see its FEMA flood zone
Flash flooding from summer thunderstorms dominates the flood risk in Washington County, UT. Over the last 30 years, the NOAA Storm Events Database recorded 277 flash flood events, resulting in 26 fatalities. For example, flash flooding occurred in July 2025 due to heavy rainfall from convective storms.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A experienced the highest average payouts ($46,673) and water depths (0.9 ft). Zone D also saw a significant single claim payout of $28,567 with an average water depth of 1.0 ft. Homeowners in these zones, as well as those in Zone X with average payouts of $12,731 and water depths of 0.5 ft, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
30 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Washington County, Utah has recorded 292 flood-related events since 1996 according to NOAA's Storm Events Database, including 277 flash floods and 15 river or area floods. The county has received 14 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1977–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Forsyth Fire | Fire | Jun 19, 2025 |
| Veyo West Fire | Fire | Jul 13, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Saddle Fire | Fire | Jun 21, 2016 |
| Severe Storm And Flooding | Flood | Sep 11, 2012 |
| Severe Winter Storm And Flooding | Flood | Dec 20, 2010 |
| Mill Flat Fire | Fire | Jul 25, 2009 |
| Hurricane Katrina Evacuation | Coastal Storm | Aug 29, 2005 |
| Blue Springs Fire | Fire | Jun 27, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 27, 2025 | 0.00K |
| Flash Flood | Aug 26, 2025 | 0.00K |
| Flash Flood | Sep 25, 2025 | 0.00K |
| Flash Flood | Aug 25, 2025 | 0.00K |
| Flood | Dec 24, 2025 | 30.00K |
| Flash Flood | Jul 18, 2025 | 0.00K |
| Flash Flood | Jul 17, 2025 | 0.00K |
| Flash Flood | Oct 12, 2025 | 0.00K |
| Flash Flood | Oct 11, 2025 | 0.00K |
| Flash Flood | Oct 10, 2025 | 1.00K |
Flash Flood — Aug 27, 2025
Showers and thunderstorms brought flash flooding to portions of southern Utah.
Flash Flood — Aug 26, 2025
Showers and thunderstorms brought flash flooding to portions of southern Utah.
Flash Flood — Sep 25, 2025
A fairly weak cutoff low slowly ejected northward through the area over the course of several days. This feature in combination with sufficient moisture created an environment that supported several days of shower and thunderstorm development. Some of these storms produced locally heavy rainfall and flash flooding, as well as some strong wind gusts.
Flash Flood — Aug 25, 2025
Showers and thunderstorms brought flash flooding to portions of southern Utah.
Flood — Dec 24, 2025
There was more than four inches of rain in some places that resulted in flooding.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Washington County, Utah:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Washington County, Utah that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.